IECC Zone 5A (north); 4A (south)

Mini Splits & Heat Pumps in Indiana

Indiana is a mixed-humid state — Indianapolis winters see lows in the 10s, summers mid-80s with Midwest humidity. Northern Indiana (Fort Wayne, South Bend) is colder with lake-effect snow. Southern Indiana (Evansville) sits on the Ohio River and runs warmer year-round.

Climate Zone
5A (north); 4A (south)
Cooling Degree Days
1,000–1,500
Heating Degree Days
5,000–6,000
Dominant Load
balanced

What Works in Indiana

Central Indiana is comfortable with a 5°F-rated DIY unit. Northern Indiana benefits from hyper-heat class for the 10–15 coldest nights per year. Duke Energy Indiana, AES Indiana, and NIPSCO all run heat pump rebate programs.

MrCool DIY 5th GenMrCool Hyper Heat (northern)

Indiana Rebates & Incentives

Indiana HEEHRA administered by Indiana Office of Energy Development. Duke Energy, AES Indiana, and NIPSCO offer stackable rebates.

Major Utilities
  • Duke Energy Indiana
  • AES Indiana
  • NIPSCO
  • Indiana Michigan Power

Indiana Licensing & Install Rules

Indiana requires municipal HVAC licensing in most cities. Homeowner DIY is generally permitted on owner-occupied residence with mechanical permits.

Top Indiana Metro Areas

We ship to every ZIP in Indiana. Largest metros where we deliver most often:

Indianapolis, IN
Fort Wayne, IN
Evansville, IN
South Bend, IN
Carmel, IN

Recommended for Indiana Homes

Heat pumps and mini splits in our catalog that match Climate Zone 5A (north); 4A (south) conditions.

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